APA (7th ed.) Citation

Garnsey, M. E. (1950). America's new frontier: The mountain west. Knopf.

Chicago Style (17th ed.) Citation

Garnsey, Morris E. America's New Frontier: The Mountain West. New York: Knopf, 1950.

MLA (9th ed.) Citation

Garnsey, Morris E. America's New Frontier: The Mountain West. Knopf, 1950.